Relationship between tables in SELECT - SQL SERVER

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I’m having a question on how to add a relationship between tables.

Example: I am using this command to get the data. However, it returns me with the ID’s of the other tables. I would like to return the names related to the ids.

SELECT * FROM BASE_MARCACAO
WHERE MA_DATA='2019-02-25 00:00:00.000' AND MA_CLINICA='1' and MA_PROFISSIONAL='6771' and MA_CLIENTE_CONVENIO IS NOT NULL
sql select server relationship

  • you have to go into more detail about your question, it’s very vague.

1 answer

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You can solve this through a INNER JOIN.

Following example:

SELECT bm.MA_DATA as data, 
       bm.MA_CLINICA as clinica, 
       bm.MA_PROFISSIONAL as profissional, 
       ot.NOME as nomeOutraTabela
FROM BASE_MARCACAO bm
INNER JOIN OUTRA_TABELA ot
ON bm.id = ot.id
WHERE bm.MA_DATA='2019-02-25 00:00:00.000' AND bm.MA_CLINICA='1' and bm.MA_PROFISSIONAL='6771' and bm.MA_CLIENTE_CONVENIO IS NOT NULL

Just making an observation to better understand the answer: OUTRA_TABELA would be the table in which the names referring to the respective ids would be.

Something else, bm and ot are aliases of their respective tables, clinica, data, profissional e nomeOutraTabela are alias of the columns of each table. It is good practice to always use to make the code more readable.

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